/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
*/

using System;
using System.Collections;
using System.Xml;
using log4net.Appender;
using log4net.Config;
using log4net.Core;
using log4net.Repository;
using log4net.Util;
using NUnit.Framework;

namespace log4net.Tests.LoggerRepository;

[TestFixture]
public class ConfigurationMessages
{
  [Test]
  public void ConfigurationMessagesTest()
  {
    try
    {
      LogLog.EmitInternalMessages = false;
      LogLog.InternalDebugging = true;

      XmlDocument log4NetConfig = new();
      log4NetConfig.LoadXml(
        """
        <log4net>
          <appender name="LogLogAppender" type="log4net.Tests.LoggerRepository.LogLogAppender, log4net.Tests">
            <layout type="log4net.Layout.SimpleLayout" />
          </appender>
          <appender name="MemoryAppender" type="log4net.Appender.MemoryAppender">
            <layout type="log4net.Layout.SimpleLayout" />
          </appender>
          <root>
            <level value="ALL" />
            <appender-ref ref="LogLogAppender" />
            <appender-ref ref="MemoryAppender" />
          </root>  
        </log4net>
        """);

      ILoggerRepository rep = LogManager.CreateRepository(Guid.NewGuid().ToString());
      rep.ConfigurationChanged += new LoggerRepositoryConfigurationChangedEventHandler(rep_ConfigurationChanged);

      ICollection configurationMessages = XmlConfigurator.Configure(rep, log4NetConfig["log4net"]!);

      Assert.That(configurationMessages.Count > 0);
    }
    finally
    {
      LogLog.EmitInternalMessages = true;
      LogLog.InternalDebugging = false;
    }
  }

  static void rep_ConfigurationChanged(object sender, EventArgs e)
  {
    ConfigurationChangedEventArgs configChanged = (ConfigurationChangedEventArgs)e;

    Assert.That(configChanged.ConfigurationMessages.Count > 0);
  }
}

public class LogLogAppender : AppenderSkeleton
{
  private static readonly Type _declaringType = typeof(LogLogAppender);

  public override void ActivateOptions()
  {
    LogLog.Debug(_declaringType, "Debug - Activating options...");
    LogLog.Warn(_declaringType, "Warn - Activating options...");
    LogLog.Error(_declaringType, "Error - Activating options...");

    base.ActivateOptions();
  }

  protected override void Append(LoggingEvent loggingEvent)
  {
    LogLog.Debug(_declaringType, "Debug - Appending...");
    LogLog.Warn(_declaringType, "Warn - Appending...");
    LogLog.Error(_declaringType, "Error - Appending...");
  }
}